Pith Number

pith:MVA4QUNI

pith:2019:MVA4QUNIKMDJRCKDHJHUACBNIQ

not attested not anchored not stored refs pending

Syntax and Stack Overflow: A methodology for extracting a corpus of syntax errors and fixes

Abram Hindle, Alexander William Wong, Amir Salimi, Shaiful Chowdhury

arxiv:1907.07803 v1 · 2019-07-17 · cs.SE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MVA4QUNIKMDJRCKDHJHUACBNIQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:40:16.250928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6541c851a853069889433a4f40082d4417acbe66cdc32e4253cbc917bed9377d

Aliases

arxiv: 1907.07803 · arxiv_version: 1907.07803v1 · doi: 10.48550/arxiv.1907.07803 · pith_short_12: MVA4QUNIKMDJ · pith_short_16: MVA4QUNIKMDJRCKD · pith_short_8: MVA4QUNI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/MVA4QUNIKMDJRCKDHJHUACBNIQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6541c851a853069889433a4f40082d4417acbe66cdc32e4253cbc917bed9377d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27a2333b5971c0f8ed64b9f9bf7c42b349a40ed0e22b4919c6e3f920d9c397d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-07-17T22:57:30Z",
    "title_canon_sha256": "ac963df1674bb3ceae38e301599c37b5feb0cb70fb5ca0bb4fba677c44e1ea74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07803",
    "kind": "arxiv",
    "version": 1
  }
}